Shutter construction



1944- F. B. SCHNEIDER SHUTTER CONSTRUCTION Filed Nov. 22, 1941 I lnvntof Fred B.- Schneider HIS Atto r'neg.

Patented Aug. 29, 1944 SHUTTER CONSTRUCTION 1 I Fred B. Schneider, Wesleyville, Pa., assignor to General Electric Company, a. corporation of New York Application November 22, 1941, Serial No. 420,109

8 Claims.

My invention relates to shutters such as are adapted to be used with radiators for internal combustion engines arranged to drive locomotives or other vehicles.

An object of my invention is to provide an improved shutter construction having a plurality of shutters arranged to be moved to different positions.

Another object of my invention is to provide a shutter construction of the above type with means for minimizing vibration of the shutters vention, partly broken away to illustrate a part of the operating device; Fig. 2 is a sectional view taken along line 2-2 of Fig. 1; Fig. 3 is a plan view of the arrangement shown in Fig. 1; Fig. 4 is an enlarged view of the lower part of Fig. 2;

' Fig. 5 is a sectional view taken along line 55 of Fig. 4; and Fig. 6 is a sectional view, partly broken away, taken along line 6-45 of Fig. 1.

Referring to the drawing, I have shown a shutter construction for use with radiators such as are provided for cooling the water in the circulating system of internal combustion engines ordinarily used with vehicles such as railway locomotives. In such shutter constructions, it is desirable that the shutters be capable of being operated from a substantially totally open position during high ambient temperatures to a substantially closed position for operation in extremely low temperature conditions. Since vehicles such as locomotives are subjected to considerable vibration, it is desirable that relatively movable parts on the vehicle be constructed to minimize vibration of the different elements in order to reduce the wear which mightbe caused by such vibration, as well as to reduce unpleasant noises which might result therefrom. The shutter construction shown in the drawing includes a frame provided with upper and lower supporting plates I0 and II and side frame members I2 securing together the upper and lower frame members. A plurality of shutters I3 is arranged in vertically staggered relationship and a pivotal mounting pin member I I is provided on each end of each shutter and arranged to support the shutters pivotally in bearings I5 formed in a frame bearing bar I6 rigidly secured to the side frame members I2 by screws II. A clamping bar I8 is arranged parallel to the frame bearing bar I6 and is provided with openings I 9 forming bearing surfaces in the clamping bar arranged in alignment with the mounting pins I4. A tension biasing spring 20 is secured to a bracket 2| rigidly fas-- tened to the frame base member II and is secured to .the clamping bar I8 by a detachable connection therewith provided by the extension of the hooked end 22 of the spring 20 through an opening 23 formed in the lower end of the clamping bar I8. In this manner, the pivotal shutter supports formed by the mounting pins I4 are subjected to a shearing clamping force between the frame bearings I5 and the bearing surfaces formed in the clamping bar I8. This tends to minimize vibration between the shutters and the supporting frames.

Each of the shutters is provided with a bracket plate 24 at one side thereof to which the supporting pivot pins I4 on that side are secured. An operating bar 25 is pivotally secured by pivot pins 26 eccentrically relative to the mounting pins I4 and is adapted to be moved vertically parallel to the frame bearing bar I6 by an operating arm 21. A coil biasing spring 28 is'arranged about a pivotal mounting rod 29 and is adapted to bias the operating bar 25 to its upper extreme position, thereby closing the shutters I3. A pair of leaf springs-30 is secured to the'operating bar 25 and arranged in compressed relationship between the operating bar 25 and frame side member I2. This leaf spring arrangement minimizes vibration between the frame I2 and the operating bar 25. By moving the operating bar downwardly or upwardly, the shutters I3 may be made to assume the wide open position indicated by the dot and dash lines in Fig. 4, the totally closed position indicated by the dotted lines in Fig. 4, or may be moved to any intermediate position indicated generally by the solid lines in this figure.

While I have illustrated and described a particular embodiment of my invention, modifications thereof will occur to those skilled in the art. I desire it to be understood, therefore, that my invention is not to be limited to the particular arrangement disclosed, and I intend in the appended claims to cover all modifications which do not depart from the spirit and scope of my invention.

What I claim as new and desire to secure by Letters Patent of the United States is:

1. A shutter construction including a plurality of shutters, pivotal means on said shutters, means including bearings for pivotally supporting said pivotal means, means having openings with other bearing surfaces around the openings arranged to cooperate with said bearings for clamping said pivotal means, and means for biasing said bearing surfaces transversely relative to said pivotal means.

2. A shutter construction including a frame, bearings in said frame, a plurality of shutters having pivotal means on said shutters arranged in said frame bearings, means having openings with other bearing surfaces around the openings arranged to cooperate with said frame bearings and clamping said pivotal means, and means for biasing said bearing surfaces transversely relative to said pivotal means.

3. A shutter construction including a frame, bearings in said frame, a plurality of shutters having pivotal means on said shutters arranged in said frame bearings, means having openings with other bearing surfaces around the openings arranged to cooperate with said frame bearings for clamping said pivotal means, means for biasing said bearing surfaces transversely relative to said pivotal means, and means for operating said shutters.

4. A shutter construction including a frame, bearings in said frame, a plurality of shutters having mounting pin members pivotally supported in said frame bearings, means including a clamping bar having openings with bearing surfaces around the openings for clamping said pins between said frame bearings and said clamping bar bearing surfaces, and means for biasing said clamping bar transversely relative to said mounting pins.

5. A shutter construction including a frame, bearings in said frame, a plurality of shutters having pivotal means on said shutters arranged in said frame bearings, means including a clamping bar having openings with bearing surfaces around the openings arranged to cooperate with said frame bearings for clamping said pivotal means, means for biasing said clamping bar transversely relative to said pivotal means, and means for operating said shutters,

6. A shutter construction including a frame, bearings in said frame, a plurality of shutters having mounting pin members pivotally supported in said frame bearings, means including a clamping bar having openings with bearing surfaces around the openings arranged in alignment with said mounting pins for clamping said pins between said frame bearings and said clamping bar bearing surfaces, means for biasing said clamping bar transversely relative to said mounting pins, and means for operating said shutters.

7. A shutter construction including a frame, bearings in said frame, a plurality of shutters having mounting pin members pivotally supported in said frame bearings, means including a clamping bar having openings with biasing surfaces around the openings for clamping said pins between said frame bearings and said clamping bar bearing surfaces, a bracket on each of said shutters, and means including an operating bar pivotally secured to said brackets eccentrically relative to said mounting pin members for operating said shutters.

8. A shutter construction including a frame, bearings in said frame, a plurality of shutters having mounting pin members pivotally supported in said frame bearings, means including a clamping bar having openings with bearing surfaces around the openings arranged in alignment with said mounting pins for clamping said pins between said frame bearings and said clamping bar bearing surfaces, a bracket on each of said shutters, and means including an operating bar pivotally secured to said brackets eccentrically relative to said mounting pin members for operating said shutters.

' FRED B. SCHNEIDERQ 

